Scale beam



Oct. 21, 1930. h sEEDERER 1,779,263

' SCALE BEAM Filed May 29, 1928 ATTO Y Patented Got. 21, 1930 JACOB EMIL SEEDERER, OF CITY, NEVJ' KOHLBUSCH, me, or

ASSIGNOE TD SEEDEBER- JERSEY CITY, NELTT JERSEY, A GURL'GRACIIGN OF NEVJ' JELLSEY SCALE BEAM Application filed May 29,

This invention relates to a beam scale and has for its object to improve upon the scale shown in my Pate -t 1,672,735 dated June 5, 1928, by adding thereto a further series of graduations whereby still smaller fractions of units of weight can be quickly and accurately measured.

According to this invention, I retain as in said patent the lower scale with adjustable knife edge pivots, and add intermediate said lower scale and upper finest graduated scale an intermediate scale. This permits the upper scale, without increase of graduations, to indicate the smaller units.

In a delicate scale of this type, it is es sential for quickness and accuracy that the poises be not only quickly but accurately adjustable. Accuracy and quickness of the lower poise is secured as in s Accuracy and quickness of tl e i2 c poise is secured according to this invention by slotting and graduating by notches the intermediate portion of the beam, and pro; viding a rolling poise similar to a spool which can readily be moved from place to place and will hold its position in the notches. Owing to the relatively small nimber of notches, balancing easily and conveniently eil'ected where necessary by hand filing, in which the workers in this art become expert.

In the accompanying drawing,

F l is an elevation of a scale ing the invention, and

ig. 2 is a partial section on the line of Fig. 1, the large poise being omitted.

10 is the base, 11 a levelling screw, and 12 a pedestal having at one end an up arm 13 supporting knit edge bearin T' in said patent aforesaid. The inoi the beam 20 is as shown in said 1 does not require detailed descri Also, this beam carries pointer moving over scale 26 carried on upright 25.

The beam 20 carries adj ustablc nife ec gee 28 similar to studs, and held by nut-s support the main poise 30. Below each knife edge are fi 'ures indicating fractions of units.

Intermediate the beam 20 is a slot 30 havembody- 1928. Serial I 10. 281,492.

scam. the graduations und the notches may, for

example, represent laic'er ractions or units weight. The secondaiy poise is inserted the slot 80 through hole 33 at one enc t" e slot beyond the graduaticns. in balcing up the beam thus far the notches can first be cut by machine and then asily filed where necessary for exact balnce throughout.

35 is the top bar of the beam having grad- .ations thereon as shown with which cooperto the tertiary poise 36, which is very light int. slides easily along the top. The gradutions on scale 35 are, for example, 1/10 of hose on the int rmediate scale, and 1/100 of those on the lower scale, so that by the three scales at very tine weighing is very quickly obtainable.

I claim:

1. A scale beam having longitudinal intermediate slot, knife edge poise pivots below the slot, notches in the slot, and upper graduations correlated with said notches.

2. A scale beam having a longitudinal Lterinediate slot, knife edge poise pivots below the slot, notches in the slot, rolling poise in the slot and cooperating with said notches, and upper graduations correlated with said notches.

3. A scale beam having a longitudinal intermediate slot, notches in the slot, and adjustable knife edge pivots below the slot correlated with said notches.

4-. A scale beam having a longitudinal intermediate slot, notches in .10 slot, and adjustable knife edge pivots correlated with said notches.

Si ned at Jersey City, in the county of Hudson and State of New Jersey this 24th day of May, A. D. 1928.

JACOB EMU SEEDERER.

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